Researchers may have finally figured out why some of us remember our dreams and others don’t. Their study suggests dream recall has to do with the amount of activity in a specific region of the brain.

People who remember their dreams regularly were found to have more activity in this area than those who rarely, if ever, remember their dreams.

Experts believe so-called “high dream recallers” have more wakefulness during sleep than “low dream recallers,” and that waking up in the night may promote the encoding of dreams in the memory.

Of course, another theory is that people who remember their dreams often are actually dreaming more than other people. They still haven’t figured out why you keep having that dream about showing up to work naked.